UNT Libraries Government Documents Department - 4,431 Matching Results

Search Results

prev Results: 25 - 48 next
open access

1985 Federal Interim Storage Fee Study: a technical and economic analysis

Description: JAI examined alternative methods for structuring charges for FIS services and concluded that the combined interests of the Deaprtment and the users would be best served, and costs most appropriately recovered, by a two-part fee involving an Initial Payment upon execution of a contract for FIS services followed by a Final Payment upon delivery of the spent fuel to the Department. The Initial Payment would be an advance payment covering the pro rata share of preoperational costs, including (1) th… more
Date: September 1, 1985
Item Type: Refine your search to only Report
open access

26th Annual Report

Description: The ACIR Library is composed of publications that study the interactions between different levels of government. This document is an annual report.
Date: January 1985
Creator: United States. Advisory Commission on Intergovernmental Relations.
Item Type: Refine your search to only Book
open access

2D ACAR momentum density study of the nature of the positron surface state on Al(100)

Description: The two-dimensional angular correlation of the 2..gamma.. annihilation radiation (2D ACAR) has been measured from an Al(100) surface bombarded by 200-eV positrons. After removing the contribution of fast para-positronium annihilation, the spectrum from positrons annihilating at the surface exhibits a nearly isotropic conical shape with a (7.1 +- 0.5) mrad FWHM. 5 refs., 6 figs.
Date: January 1, 1985
Creator: Berko, S.; Canter, K. F.; Lynn, K. G.; Mills, A. P.; Roellig, L. O. & West, R. N.
Item Type: Refine your search to only Article
open access

3081/E processor and its on-line use

Description: The 3081/E is a second generation emulator of a mainframe IBM. One of it's applications will be to form part of the data acquisition system of the upgraded Mark II detector for data taking at the SLAC linear collider. Since the processor does not have direct connections to I/O devices a FASTBUS interface will be provided to allow communication with both SLAC Scanner Processors (which are responsible for the accumulation of data at a crate level) and the experiment's VAX 8600 mainframe. The 3081… more
Date: May 1, 1985
Creator: Rankin, P.; Bricaud, B.; Gravina, M.; Kunz, P. F.; Oxoby, G.; Trang, Q. et al.
Item Type: Refine your search to only Article
open access

3D calculations of a fixed field alternating gradient synchrotron magnet

Description: A Spallation neutron source for materials science studies was designed at Argonne and required a fixed field alternating gradient (FFAG) synchrotron magnet. 3D electrostatic calculations were made to obtain the unsaturated magnet pole shape. This pole shape was refined using 3D magnetostatic calculations that included the steel permeability and coil geometry. Details of the calculations are given concerning such things as: size of the problem and how to split it up, the number and shape of the … more
Date: January 1, 1985
Creator: Lari, R.J.
Item Type: Refine your search to only Article
open access

3lambda/4 post coupler for drift-tube linacs

Description: New permanent magnets for quadrupole focusing make possible smaller drift tubes in drift-tube linacs (DTLs), resulting in higher shunt impedance. However, ordinary post couplers cannot stabilize a DTL whose drift-tube-to-wall spacing exceeds one-quarter wavelength (lambda/4) by more than a few per cent for the accelerating mode frequency. We have built and tested post couplers that operate in the 3lambda/4 mode. These 3lambda/4 post couplers, when substituted for lambda/4 couplers, had similar … more
Date: January 1, 1985
Creator: Billen, J. H.; Garcia, J. A.; Potter, J. M. & Spalek, G.
Item Type: Refine your search to only Article
open access

3Q120 Low Gradient Behaviour

Description: Three 3Q120 magnets--representative of those in the AP 1 line--have been measured with a harmonics probe at MDTF at both low (0-48 A) and high (to >= 400 A). The intent of the measurements was to learn their behavior at the low gradients necessary to transport 8 Gev antiprotons back through the AP 1 line for injection into the Main Ring (and subsequently the superconducting ring--see Ref. 1). Many of the measurements have been preceded by remnant field biasing ramps to 148, 270, 295, or 405 … more
Date: October 1, 1985
Creator: Wehmann, A.
Item Type: Refine your search to only Report
open access

3Q120 Low Gradient Behaviour-Companion Report

Description: Three 3Q120 magnets--representative of those in the AP 1 line--have been measured with a harmonics probe at MDTF at both low (0-48 A) and high (to >= 400 A). The intent of the measurements was to learn their behavior at the low gradients necessary to transport 8 Gev antiprotons back through the AP 1 line for injection into the Main Ring. This paper describes some aspects of the measurements that were not included in the main paper, in order to keep the size of the main report reasonably smal… more
Date: October 1, 1985
Creator: Wehmann, A.
Item Type: Refine your search to only Report
open access

4X source

Description: Our Penning surface-plasma source (SPS) discharge chamber was enlarged 4X in two dimensions. To date, three pulsed discharge modes have been studied: two with noisy arc (greater than or equal to 20% H/sup -/ current fluctuations) and one with quiescent arc (less than or equal to 1% H/sup -/ current fluctuations). Lower arc magnetic field and higher H/sub 2/ gas flow allow switching from the noisy to the quiescent mode. The noisy modes yield up to 120 mA of 29-keV H/sup -/ beam; for 110 mA at 29… more
Date: January 1, 1985
Creator: Smith, H. Vernon, Jr.; Allison, Paul & Sherman, Joseph D.
Item Type: Refine your search to only Article
open access

5cm, no iron SSC dipole 12m model cryostat thermal performance

Description: A 12 m long model of a 5 cm costheta dipole cryostat has been constructed and its thermal performance measured. The model utilized heat intercepted fiberglass reinforced plastic posts to support the 12 m long, 4.5 K cold mass and the 10 and 80 K thermal shields. A superinsulation blanket system utilizing aluminized polyester with fiberglass mat spacing material was developed and installed on the 10 and 80 K thermal shields. The heat gain to 4.5, 10 and 80 K was measured. We have compared the re… more
Date: September 1, 1985
Creator: Powers, R. J.; Gonczy, J. D.; Otavka, J.; Niemann, R. C.; Szymulanski, A. & Tague, J. L.
Item Type: Refine your search to only Article
open access

5f-band narrowing in UX/sub 3/B compounds: evidence from resonant photoemission. [X = Ru or Rh]

Description: Resonant photoemission at the uranium 5d disorption edge has been used to determine the 5f emission in URu/sub 3/, URh/sub 3/, URu/sub 3/B, and URh/sub 3/B polycrystalline samples. The observed 5f band narrowing (from 2.0 to 1.5 eV as one goes from URu/sub 3/ to URu/sub 3/B, and from 2.8 to 1.1 eV for URh/sub 3/ and URh/sub 3/B respectively) is explained as due to a decrease in the f-d hybridization between uranium and rhodium (ruthenium) atoms.
Date: October 1985
Creator: Zolnierek, Z.; Arko, A. J. & Koelling, D. D.
Item Type: Refine your search to only Article
open access

ABC's of pion charge exchange. [Absorption, blocking, and correlations]

Description: Calculations of pion single charge exchange using the PWIA and DWIA are presented. Emphasis is given to the effects of absorbtion and blocking. A microscopic calculation of the 0/sup 0/ excitation and low energy angular distribution is in excellent agreement with the data. A fixed nucleon multiple scattering calculation of the pion double charge exchange reaction is presented. Various valence neutron wave functions are used, and the contributions of different spatial orientations of the last tw… more
Date: 1985~
Creator: Gibbs, W.R.; Kaufmann, W.B. & Siegel, P.B.
Item Type: Refine your search to only Article
open access

Abort kicker power supply systems at Fermilab

Description: Over the past several years, Fermilab has been operating with a single turn proton abort system in both the superconducting Tevatron and the conventional Main Ring. The abort kicker power supply for this system discharges a lumped capacitance into the inductive magnet load, causing the beam to enter the abort channel. The characteristics of this current waveform are defined by the requirements of the machine operation. The standard fixed target running mode calls for 12 booster batches of beam … more
Date: June 1, 1985
Creator: Krafczyk, G.; Dugan, G.; Harrison, M.; Koepke, K. & Tilles, E.
Item Type: Refine your search to only Article
open access

Absolute Wavelength Measurement and Fine Structure Determination in /Sup 7/Li Ii

Description: The energy levels of two-electron atoms continue to provide rigorous tests of relativistic quantum theory, and of correlation effects within a multi-particle system. These interactions are determined perturbatively, with several approximations, and theoretical results often differ. It is critical to provide precise measurements of absolute wavelengths connecting these atomic energy levels to obtain a resolution of the precision of the different parts of such complex calculations. In this work, … more
Date: January 1, 1985
Creator: Riis, E.; Berry, H.G.; Poulsen, O.; Lee, S.A. & Tang, S.Y.
Item Type: Refine your search to only Article
open access

Absorption spectra of shocked liquid CS/sub 2/

Description: The importance of shock initiation of high explosives (HE) was understood as early as 1863 when Alfred Nobel introduced the detonator as a means of detonating nitroglycerine. The critical pressure rise times required to achieve shock initiation and steady propagation of detonation are determined by the chemical and mechanical properties of an explosive. Although progress has been made in the understanding of the effects of mechanical properties, the detailed effects of high pressures on chemica… more
Date: January 1, 1985
Creator: Dallman, J.C.
Item Type: Refine your search to only Article
open access

Abundance and Distribution of Walleye, Northern Squawfish, and Smallmouth Bass in John Day Reservoir, 1984-1985 Progress Report.

Description: Sampling was conducted in John Day Reservoir to collect walleye, northern squawfish and smallmouth bass. Changes in distributions during sampling were characterized from changes in catch per unit effort (CPUE) in sampling areas. Observed movements of marked and radiotagged fish were examined and used to define discrete populations. Abundances were estimated using a modified Schnabel multiple mark and recapture estimator. Abundance estimates were corrected for angler harvest, size specific vulne… more
Date: December 1, 1985
Creator: Beamesderfer, Raymond C.
Item Type: Refine your search to only Report
open access

Accelerated Leach Test(s) Program. Annual report

Description: This report summarizes the work performed for the Accelerated Leach Test(s) Program at Brookhaven National Laboratory in Fiscal Year 1985 under the sponsorship of the US Department of Energy's Low-Level Waste Management Program (LLWMP). Programmatic activities were concentrated in three areas, as listed and described in the following paragraphs. (1) A literature survey of reported leaching mechanisms, available mathematical models and factors that affect leaching of LLW forms has been compiled.… more
Date: September 1, 1985
Creator: Dougherty, D.R.; Fuhrmann, M. & Colombo, P.
Item Type: Refine your search to only Report
open access

Acceleration of beam ions during major radius compression in TFTR

Description: Tangentially co-injected deuterium beam ions were accelerated from 82 keV up to 150 keV during a major radius compression experiment in TFTR. The ion energy spectra and the variation in fusion yield were in good agreement with Fokker-Planck code simulations. In addition, the plasma rotation velocity was observed to rise during compression.
Date: September 1, 1985
Creator: Wong, K. L.; Bitter, M.; Hammett, G. W.; Heidbrink, W.; Hendel, H.; Kaita, R. et al.
Item Type: Refine your search to only Report
open access

Acceleration of compact torus plasma rings in a coaxial rail-gun

Description: We discuss here theoretical studies of magnetic acceleration of Compact Torus plasma rings in a coaxial, rail-gun accelerator. The rings are formed using a magnetized coaxial plasma gun and are accelerated by injection of B/sub theta/ flux from an accelerator bank. After acceleration, the rings enter a focusing cone where the ring is decelerated and reduced in radius. As the ring radius decreases, the ring magnetic energy increases until it equals the entering kinetic energy and the ring stagna… more
Date: May 16, 1985
Creator: Hartman, C. W.; Hammer, J. H. & Eddleman, J.
Item Type: Refine your search to only Article
open access

Acceleration of polarized H/sup -/ in the BNL 200 MeV Linac

Description: The AGS Polarized Beam Project was started in 1980. The first beam was accelerated in March 1984, followed by commissioning studies and a high energy physics run at 16.5 GeV at an average 30% polarization. The Linac portion of the project included a new polarized H/sup -/ ion source and a Radio-Frequency Quadrupole (RFQ). These will be described as will the design of the new Low Energy Beam Transport (LEBT) line and beam instrumentation for the Linac. Operational results, current status and fut… more
Date: January 1, 1985
Creator: Makdisi, Y.; Witkover, R.; Alessi, J.; Brown, H.; Barton, D.; Kponou, A. et al.
Item Type: Refine your search to only Article
open access

Acceleration simulation in the LAMPF II booster

Description: We study the evolution of the longitudinal phase space during acceleration from 0.797-7.3 GeV in the LAMPF II booster. This machine is planned to accelerate 150 ..mu..A of protons using a 60 Hz repetition rate. A multiparticle simulation program was used to model the acceleration with space charge included. The bunch population of 2.5 x 10/sup 11/ protons was represented by 1000 macroparticles. During acceleration the rms longitudinal emittance grows by 3% and two particles are lost out of the … more
Date: January 1, 1985
Creator: Colton, E. P.
Item Type: Refine your search to only Article
open access

Accelerator and Fusion Research Division: 1984 summary of activities

Description: During fiscal 1984, major programmatic activities in AFRD continued in each of five areas: accelerator operations, highlighted by the work of nuclear science users, who produced clear evidence for the formation of compressed nuclear matter during heavy-ion collisions; high-energy physics, increasingly dominated by our participation in the design of the Superconducting Super Collider; heavy-ion fusion accelerator research, which focused on the design of a four-beam experiment as a first step tow… more
Date: May 1, 1985
Item Type: Refine your search to only Report
open access

Accelerator breeder nuclear fuel production: concept evaluation of a modified design for ORNL's proposed TME-ENFP

Description: Recent advances in accelerator beam technology have made it possible to improve the target/blanket design of the Ternary Metal Fueled Electronuclear Fuel Producer (TMF-ENFP), an accelerator-breeder design concept proposed by Burnss et al. for subcritical breeding of the fissile isotope /sup 233/U. In the original TMF-ENFP the 300-mA, 1100-MeV proton beam was limited to a small diameter whose power density was so high that a solid metal target could not be used for producing the spallation neutr… more
Date: January 1, 1985
Creator: Johnson, J. O.; Gabriel, T. A. & Bartine, D. E.
Item Type: Refine your search to only Report
Back to Top of Screen